From 603c1310ffc0cdb61a66f68b8240e76c2ae7cb04 Mon Sep 17 00:00:00 2001 From: Whymarrh Whitby Date: Mon, 16 Apr 2018 12:59:43 -0230 Subject: Add a few missing docblocks to background files --- app/scripts/lib/events-proxy.js | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) (limited to 'app/scripts/lib/events-proxy.js') diff --git a/app/scripts/lib/events-proxy.js b/app/scripts/lib/events-proxy.js index c0a490b05..f83773ccc 100644 --- a/app/scripts/lib/events-proxy.js +++ b/app/scripts/lib/events-proxy.js @@ -1,26 +1,37 @@ +/** + * Returns an EventEmitter that proxies events from the given event emitter + * @param {any} eventEmitter + * @param {object} listeners - The listeners to proxy to + * @returns {any} + */ module.exports = function createEventEmitterProxy (eventEmitter, listeners) { let target = eventEmitter const eventHandlers = listeners || {} - const proxy = new Proxy({}, { - get: (obj, name) => { + const proxy = /** @type {any} */ (new Proxy({}, { + get: (_, name) => { // intercept listeners if (name === 'on') return addListener if (name === 'setTarget') return setTarget if (name === 'proxyEventHandlers') return eventHandlers - return target[name] + return (/** @type {any} */ (target))[name] }, - set: (obj, name, value) => { + set: (_, name, value) => { target[name] = value return true }, - }) - function setTarget (eventEmitter) { + })) + function setTarget (/** @type {EventEmitter} */ eventEmitter) { target = eventEmitter // migrate listeners Object.keys(eventHandlers).forEach((name) => { - eventHandlers[name].forEach((handler) => target.on(name, handler)) + /** @type {Array} */ (eventHandlers[name]).forEach((handler) => target.on(name, handler)) }) } + /** + * Attaches a function to be called whenever the specified event is emitted + * @param {string} name + * @param {Function} handler + */ function addListener (name, handler) { if (!eventHandlers[name]) eventHandlers[name] = [] eventHandlers[name].push(handler) -- cgit